stresser: (g=0): rw=write, bs=16K-64K/16K-64K, ioengine=mmap, iodepth=1
stresser: (g=1): rw=randrw, bs=16K-64K/16K-64K, ioengine=mmap, iodepth=4
...
stresser: (g=1): rw=randrw, bs=16K-64K/16K-64K, ioengine=mmap, iodepth=4
Starting 5 processes
stresser: Laying out IO file(s) (1 file(s) / 4096MiB)

stresser: (groupid=0, jobs=1): err= 0: pid=6174
  read : io=4,096MiB, bw=246MiB/s, iops=6,289, runt= 16662msec
    clat (usec): min=10, max=141, avg=30.21, stdev=13.65
    bw (KiB/s) : min=    0, max=254656, per=97.10%, avg=244447.06, stdev=43380.38
  write: io=4,096MiB, bw=26,598KiB/s, iops=664, runt=157688msec
    clat (usec): min=13, max=4,965K, avg=1266.38, stdev=29956.10
    bw (KiB/s) : min=    0, max=85920, per=119.63%, avg=31820.21, stdev=30644.33
  cpu          : usr=22.62%, sys=3.08%, ctx=19515, majf=1, minf=2099251
  IO depths    : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0%
     submit    : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
     complete  : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
     issued r/w: total=104803/104803, short=0/0
     lat (usec): 20=23.30%, 50=52.39%, 100=16.12%, 250=0.60%, 500=0.43%
     lat (usec): 750=0.70%, 1000=0.94%
     lat (msec): 2=3.36%, 4=1.07%, 10=0.43%, 20=0.19%, 50=0.23%
     lat (msec): 100=0.16%, 250=0.04%, 500=0.03%, 750=0.01%, 1000=0.01%
     lat (msec): >=2000=0.01%
stresser: (groupid=1, jobs=1): err= 0: pid=6345
  read : io=3,072MiB, bw=16,240KiB/s, iops=406, runt=193703msec
    clat (usec): min=4, max=15,205, avg=36.30, stdev=85.79
    bw (KiB/s) : min=   13, max=677365, per=56.11%, avg=36450.92, stdev=113847.24
  write: io=1,024MiB, bw=5,413KiB/s, iops=135, runt=193705msec
    clat (usec): min=5, max=7,429K, avg=7259.73, stdev=146661.99
    bw (KiB/s) : min=    0, max=223680, per=55.14%, avg=11939.75, stdev=37495.90
  cpu          : usr=1.47%, sys=0.75%, ctx=4731, majf=0, minf=844198
  IO depths    : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0%
     submit    : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
     complete  : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
     issued r/w: total=78739/26244, short=0/0
     lat (usec): 10=3.11%, 20=21.43%, 50=47.69%, 100=26.93%, 250=0.50%
     lat (usec): 500=0.07%, 750=0.01%, 1000=0.02%
     lat (msec): 2=0.07%, 4=0.01%, 10=0.01%, 20=0.01%, 50=0.01%
     lat (msec): 100=0.01%, 250=0.02%, 500=0.03%, 750=0.02%, 1000=0.02%
     lat (msec): 2000=0.03%, >=2000=0.02%
stresser: (groupid=1, jobs=1): err= 0: pid=6346
  read : io=3,072MiB, bw=16,713KiB/s, iops=416, runt=188217msec
    clat (usec): min=4, max=5,997, avg=37.50, stdev=33.68
    bw (KiB/s) : min=  541, max=600160, per=52.26%, avg=33946.64, stdev=103715.05
  write: io=1,024MiB, bw=5,564KiB/s, iops=139, runt=188432msec
    clat (usec): min=6, max=6,411K, avg=7040.01, stdev=133297.33
    bw (KiB/s) : min=    0, max=198592, per=51.42%, avg=11133.24, stdev=34212.79
  cpu          : usr=1.65%, sys=0.74%, ctx=4329, majf=0, minf=841076
  IO depths    : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0%
     submit    : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
     complete  : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
     issued r/w: total=78400/26309, short=0/0
     lat (usec): 10=2.69%, 20=18.47%, 50=46.12%, 100=31.18%, 250=1.31%
     lat (usec): 500=0.02%, 750=0.01%, 1000=0.01%
     lat (msec): 2=0.01%, 4=0.01%, 10=0.01%, 20=0.01%, 50=0.01%
     lat (msec): 100=0.01%, 250=0.03%, 500=0.03%, 750=0.02%, 1000=0.02%
     lat (msec): 2000=0.04%, >=2000=0.02%
stresser: (groupid=1, jobs=1): err= 0: pid=6347
  read : io=3,072MiB, bw=16,566KiB/s, iops=414, runt=189889msec
    clat (usec): min=5, max=2,598, avg=34.98, stdev=26.09
    bw (KiB/s) : min=   46, max=697792, per=55.53%, avg=36071.44, stdev=117910.88
  write: io=1,024MiB, bw=5,414KiB/s, iops=136, runt=193659msec
    clat (usec): min=5, max=8,166K, avg=7227.80, stdev=139234.67
    bw (KiB/s) : min=    0, max=223584, per=53.76%, avg=11639.22, stdev=37905.66
  cpu          : usr=1.50%, sys=0.74%, ctx=4450, majf=0, minf=845003
  IO depths    : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0%
     submit    : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
     complete  : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
     issued r/w: total=78641/26372, short=0/0
     lat (usec): 10=2.92%, 20=22.01%, 50=47.81%, 100=26.14%, 250=0.83%
     lat (usec): 500=0.10%, 750=0.01%, 1000=0.01%
     lat (msec): 2=0.01%, 4=0.01%, 10=0.01%, 20=0.01%, 50=0.01%
     lat (msec): 100=0.01%, 250=0.02%, 500=0.03%, 750=0.03%, 1000=0.02%
     lat (msec): 2000=0.02%, >=2000=0.02%
stresser: (groupid=1, jobs=1): err= 0: pid=6348
  read : io=3,072MiB, bw=16,240KiB/s, iops=405, runt=193694msec
    clat (usec): min=5, max=4,533, avg=36.68, stdev=30.25
    bw (KiB/s) : min=   22, max=619328, per=49.94%, avg=32442.79, stdev=103653.72
  write: io=1,024MiB, bw=5,413KiB/s, iops=135, runt=193683msec
    clat (usec): min=6, max=7,008K, avg=7261.40, stdev=129171.85
    bw (KiB/s) : min=    0, max=206880, per=49.73%, avg=10767.23, stdev=34191.35
  cpu          : usr=1.61%, sys=0.71%, ctx=4734, majf=0, minf=844019
  IO depths    : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0%
     submit    : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
     complete  : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
     issued r/w: total=78515/26240, short=0/0
     lat (usec): 10=2.64%, 20=19.60%, 50=46.44%, 100=30.28%, 250=0.82%
     lat (usec): 500=0.02%, 750=0.01%, 1000=0.01%
     lat (msec): 2=0.01%, 4=0.01%, 10=0.01%, 20=0.01%, 50=0.01%
     lat (msec): 100=0.01%, 250=0.02%, 500=0.03%, 750=0.03%, 1000=0.02%
     lat (msec): 2000=0.03%, >=2000=0.03%

Run status group 0 (all jobs):
   READ: io=4,096MiB, aggrb=246MiB/s, minb=246MiB/s, maxb=246MiB/s, mint=16662msec, maxt=16662msec
  WRITE: io=4,096MiB, aggrb=26,598KiB/s, minb=26,598KiB/s, maxb=26,598KiB/s, mint=157688msec, maxt=157688msec

Run status group 1 (all jobs):
   READ: io=12,288MiB, aggrb=64,960KiB/s, minb=16,240KiB/s, maxb=16,713KiB/s, mint=188217msec, maxt=193703msec
  WRITE: io=4,096MiB, aggrb=21,652KiB/s, minb=5,413KiB/s, maxb=5,564KiB/s, mint=188432msec, maxt=193705msec

Disk stats (read/write):
  sda: ios=17440/64920, merge=0/1783742, ticks=265099/66176207, in_queue=66441311, util=96.13%
54.79user 31.40system 10:41.47elapsed 13%CPU (0avgtext+0avgdata 0maxresident)k
8388912inputs+23267768outputs (2major+5477888minor)pagefaults 0swaps